EP 0972947 A3 20020417 - Actuator for the angular adjustment of a tunnel washing vehicle brush boom
Title (en)
Actuator for the angular adjustment of a tunnel washing vehicle brush boom
Title (de)
Antriebseinrichtung zur Schwenkeinstellung eines Bürstenauslegers eines Tunnelwaschfahrzeuges
Title (fr)
Vérin pour l'ajustement angulaire du bras à brosses d'un véhicule de lavage de tunnels
Publication
Application
Priority
- AT 47198 U 19980714
- AT 24199 U 19990413
Abstract (en)
[origin: EP0972947A2] A brush support arm for a tunnel cleaning vehicle holds the rotating brush against the tunnel wall and is retracted partially whenever obstructions are met eg. traffic signs, blowers etc. The main servo drive for the arm comprises a pneumatic ram (9) with a pneumatic ram (10) in series. The cylinders of the two rams are linked. The major movement of the arm is controlled by the hydraulic ram while the pneumatic ram covers the smaller deflections of the brush as well as controlling the brushing pressure
IPC 1-7
IPC 8 full level
E01H 1/00 (2006.01); F15B 11/072 (2006.01); F15B 11/12 (2006.01)
CPC (source: EP)
E01H 1/005 (2013.01); F15B 11/072 (2013.01); F15B 11/125 (2013.01); F15B 2211/3111 (2013.01); F15B 2211/327 (2013.01); F15B 2211/6336 (2013.01); F15B 2211/665 (2013.01); F15B 2211/7053 (2013.01); F15B 2211/765 (2013.01)
Citation (search report)
- [X] GB 1038924 A 19660810 - MATERIEL DE VOIRIE
- [AD] EP 0184577 A2 19860611 - ZELLINGER GMBH [AT]
- [AD] AT 344232 B 19780710 - ZELLINGER GMBH [AT]
- [X] PATENT ABSTRACTS OF JAPAN vol. 009, no. 309 (C - 318) 5 December 1985 (1985-12-05)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0972947 A2 20000119; EP 0972947 A3 20020417; EP 0972947 B1 20040818; DE 59910253 D1 20040923
DOCDB simple family (application)
EP 99890156 A 19990519; DE 59910253 T 19990519